tpope/vim-rails — pull request #166 by aripollak (2012-07-03 18:37:15+00:00)
Title: Add xdg-open support to OpenURL

* This is mostly standard on Linux-based desktop environments and
respects users' browser settings in their desktop environment, unlike
sensible-browser; but still allow falling back to sensible-browser
* Using sh -c was the only thing I tried that worked; it seems like
"-open" is getting interpreted specially by vim for some reason.